Method of securing bars to traction shoes



June 4, 1929. w. E. wlNE METHOD 0F SECURINGBARS TO TRACTION SHOES Original Filed June l, 1925 Patented .lune 4, 1929.

UNITED STATES PATENT OFFICE.

WILLIAM E. WINE, OF TOLEDO, OHIO, ASSIGNOR TO THE WINE RAILWAY APPLIANCE COMPANY, OF TOLEDO, OHIO, A CORPORATION OF OHIO.

METHOD OF SECURING BARSA'IO TRACTION SHOES.

Original application filed .Tune 1, 1925, Serial No. 33,975. Divided and this application filed August 20, 1926. Serial No. 130,379.

This is a division of my application, Serial No. 33,975, filed June 1, 1925.

The invention relates to traction wheels of the type in which a plurality of shoes are loosely mounted on the wheel rim, and in which a driving engagement is provided between co-operating members on the rim and on the shoes.

The primary object of this invention is to provide novel method and means for securing to the shoe the pivot or anchor bar Whereby the shoe is loosely mounted on the wheel rim.

I have illustrated the invention embodied in a shoe and wheel as shown in my original application, Serial No. 33,975, and referring thereto:

Fig. 1 is an elevation of a portion of the traction wheel.

Fig. 2 is an enlarged section which is taken on the line 2 2 of Fig. 3.

Fig. 3 is a section on the line 3 3 of Fig. 2.

Fig. 4 is a section similar to Fig. 3, showing the shoe detached from the wheel and with the transverse bar in place but not secured.

Referring to the drawings the rim 1 of the wheel has a wide bearing portion 2 and upturned side edges 3, the bearing portion having transverse apertures 4 which are spaced apart around the rim., there being one aperture for each shoe. A tooth memberis secured in each aperture and this member comprises a pair of spaced teeth 5 5 which engage the transverse edges of the aperture and are connected by a U shaped strap 6 which is positioned beyond the bearing portion of the rim. Legs or flanges 7 7 project outward from the teeth 5 5 and lie against the outer face ofthe bearing portion. A strap 8 is arranged over the inner ends ofthe teeth 5 5 and is provided with the legs 9 9 extending outward and lying against the inner face of the bearing portion and having abutments 1() disposed against the teeth. Bolts 11 pass through `the legs 7 7 and 9 9, and through the bearing portion of the rim, to secure the tooth member securely in place in the aperture and against the outer face of the rim, with the strap member securely in place over the open portion of the tooth member and against the inner face of the rim (Fig. 2)

The strap 6 acts as a holder to retain the shoe loosely upon the wheel rim. v

The shoe is provided with a transverse bar 12 disposed within apertured ears 13, 14.

The aperture 4 in the bearing portion of the rim is of suficient size to accommodate the ears 13, 14 as well as the teeth 5 5. In Fig. 4 I have shown a shoe as it appears with the transverse bar in place but before it is secured in the ears. A lug 15 preferably cast with the shoe projects into the aperture of the ear 14 and partly closes this aperture. The transverse bar 12, which is shown in the form of a cylinder pin, is provided at one end with a shoulder 16 to engage the lug 15, and at its other end with a shoulder 17 which may be similar in all respects to the shoulder 16. These shoulders can be formed conveniently by recessing the ends of the bar. The shoe is provided with surplus metal which takes the form of a bump or enlargement 18 and after the Abar 12 has been inserted in the ears 13, 14 and the shoulder 16 properly engaged with the lug 15, the surplus metal 18, or a part thereof, is forced up to provide a lug 19 which engages the shoulder 17. Thus the bar is securely held in the ears on the shoe against endwise and rotative movement by the simple expedient of forcing sufficient metal of the shoe into a lug 19 which makes engagement with the bar, and preferably with a shoulder thereon, to secure the bar in place.

The shoe has track sections 20, 2O to receive the rim of the wheel, ground engaging bars 21 and 22, a pocket 23 formed by sides 24 and 25 and a bottom 26, the bottom acting as a bearing surface on the ground to support the load carried by the shoe and prevent disturbance of the earth by the holder 6.

The transverse bar acts as a pivot bar, a loose connection bar and a driving means. When the parts are assembled and secured as shown in Fig. 2 driving engagement is provided between the bar and the teeth. When it is desired to use the wheel on a paved road where the traction shoes are' not required the shoes may be removed by loosening the bolts.

The invention is shown and described herein in a form satisfactory for this particular adaptation, and I believe that this form will also be satisfactory for other adaptations but it may be necessary to make changes in the invention to better adapt it for some adaptations or for other purposes and I reserve the right to make all sueh changes as fairly fell Within the scope of the following claims.

I claim:

1. The herein described method of securing a pivot bar to a traction shoe which com" prises notching the bar to provide a shoulder at each end thereo'lI on the same side, providing an eXcess of metal onthe shoe and a lug to engage one shoulder on Jthe bar, and de 'forming the shoe to produce a lug from said excess metal to engage the other shoulder on the bar to hold the shoe and the bar together.

2. The herein described method of securing a pivot bar to a traction shoe which comprises notehing the bar at each end thereof on the same side to provide shoulders, providing a lug on the shoe to engage one of said shoulders, and then deforming the shoe to provide another lug thereon for engagement With the other shoulder to hold the parts together.

8. The herein described method of securing a bar to a traction shoewhieh comprises providing the traction shoe With apertured ears to receive the endsl of the bar, notching the bar at the ends thereof at one side to provide shoulders, providing means between one ear and one end of the bar to engage one of said shoulders, and deforming the metal O the shoe at the other ear to form a lug for engaging the shoulder' at the other end of the bar.

WILLIAM E. WINE.k 

